Launch the mvn site-deploy command.
If you have a dependency with an internal javadoc web site, the plugin tried to link this javadoc with the http proxy and logged:
"Error fetching link: http://internal-host/..../apidocs/package-list. Ignored it."

This is a bug because this javadoc isn't accessible via http proxy.

So I attached 2 patches :

the first one (link_nonproxy_2.0.10.patch) is compatible (and tested) with mvn 2.0.9 and 2.0.10 but included a method directly copied from ProxyUtils.java (wagon-provider-api-1.0-beta-6.jar)

the second (link_nonproxy_2.2.0.patch) used 2 classes from wagon-provider-api-1.0-beta-6.jar dependency so it requires mvn 2.2